User guide

Table Of Contents
Change a SIM card contact...................................................................................................................................................................................................................... 252
Delete a SIM card contact........................................................................................................................................................................................................................ 252
Store SMS text messages on your SIM card........................................................................................................................................................................................... 252
About SIM card security............................................................................................................................................................................................................................ 253
Protect your SIM card with a PIN code................................................................................................................................................................................................... 253
Change the SIM card PIN code................................................................................................................................................................................................................ 253
Change the display name for a phone number...................................................................................................................................................................................... 253
Security........................................................................................................................................................................................................................................................ 254
Security basics............................................................................................................................................................................................................................................ 254
Password keeper........................................................................................................................................................................................................................................ 256
Encryption................................................................................................................................................................................................................................................... 258
Memory cleaning........................................................................................................................................................................................................................................ 261
Certificates.................................................................................................................................................................................................................................................. 262
PGP keys..................................................................................................................................................................................................................................................... 270
Certificate servers...................................................................................................................................................................................................................................... 276
Key stores.................................................................................................................................................................................................................................................... 278
Smart cards................................................................................................................................................................................................................................................. 281
Software tokens.......................................................................................................................................................................................................................................... 285
VPN settings............................................................................................................................................................................................................................................... 286
About security self-tests............................................................................................................................................................................................................................ 287
Verify security software............................................................................................................................................................................................................................. 287
Third-party application control................................................................................................................................................................................................................ 287
Security troubleshooting........................................................................................................................................................................................................................... 291
Service books and diagnostic reports...................................................................................................................................................................................................... 293
Service books.............................................................................................................................................................................................................................................. 293
Diagnostic reports...................................................................................................................................................................................................................................... 294
Accessibility options.................................................................................................................................................................................................................................. 296
About accessibility options....................................................................................................................................................................................................................... 296
Change the display font............................................................................................................................................................................................................................ 296
Use reverse contrast for the screen display............................................................................................................................................................................................ 296
Use grayscale for the screen display....................................................................................................................................................................................................... 296
Set the number of icons that appear on the Home screen................................................................................................................................................................... 297
Turn on event sounds................................................................................................................................................................................................................................ 297
Assign ring tones and alerts to a contact................................................................................................................................................................................................ 297
TTY support................................................................................................................................................................................................................................................. 298
Hearing aid mode...................................................................................................................................................................................................................................... 298
Voice dialing............................................................................................................................................................................................................................................... 299
AutoText...................................................................................................................................................................................................................................................... 299
Predictive input method............................................................................................................................................................................................................................ 300